Gas-burner.



` `UNITED STATES 'PATENT OFFICE.

JOHN F. BARKER, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE GILBERT it BARKER MANUFACTURING COMPANY, vOF SAME PLACE.

GAS-BURNER.

SPECIFICATION forming' part of Letters Patent No. 628,064, dated July 4, 1899. Alpiicmon inea December 2551898. seria 110.700.127. (remodel.)

To ot-ZZ whom it may con/cern;

Be it known that I, JOHN F. BARKER, a citizen of the United States of America, residing at Springtield, in the county of Hampden and State of Massachusetts, have invented a certain new and useful Improvement in Gas- Burners, of which the following is a description, reference being had to the accompanying drawings. l

' [o The improvement relates to that class of gas-burners used mainly for utilizing the heat produced by the combustion in the form of a column of flame in various processes of manufacture-as, for instance, in soldering and I5 brazing.

Figure l is an elevation view of a burner embodying said improvement. Fig. 2 is a View of a portion of the burner-pipe in central vertical section. Fig. 3 is a view look- 2o in g into the burner end of said burner-pipe. In the accompanying drawings the letter ct denotes what may be termed the burnerpipe. The gas used, whether it be carbureted hydrogen or a hydrocarbon, such as is commonly lproduced from gasolene, is generally mixed with atmospheric air, both being under pressure, before getting to the burner, and the apparatus shown in the drawings is designed for such use. The gas may enter 3o at b and the atmospheric air atlc. They join, mix, and liow through the burner-pipe tothe place of combustion, which in this apparatus is at the burner end d.

The letter e denotes a ring which may well be called a choke-ring, located within the burner-pipe and in the main exteriorly in lcontact with the interior of the burner-pipe and supported thereby. Through the open center of this choke-ring the gas [lows under 4o a given pressure with a certain velocity. The

choke-ring is pierced, preferably at its periphery, by small gas-passagesf, and at the said pressure the gas passes through them with considerably less velocity than through the open center of the choke-ring. The immediate effect of this difference in velocity of the portions of the gas which ow, respec-` tively, through the open center of the chokering and through the smaller passages is to provide the central volume',of higher velocity, 5o

with an envelop of the same gas of considerably-diminished velocity. Apparently this same condition of things is kept up when the whole volume of gas issues from the pipe at the burner end, where it is lighted and consumed for the purpose of giving out its heat, and the ultimate result is that this outer envelop of gas of lesser velocity protects the inner Volume of higher Velocity from being l blown out or extinguished, and one great advantage of the arrangement is that the operator is enabled to use thecolumn of gas under combustion at a very much higher velocity than he otherwise could, giving, of course, a corresponding amount of increase in the volume and intensity of the heat. g

The claim hereinafter made specifies the small gas-passages as located next the interior of said pipe and that is the preferable construction; but the's'ame kind of effect is 7o produced to a lesser degree where these smaller passages are present around the outside of the larger passage, but not brought to immediate contact with the interior of the burner-pipe, and such an arrangement is within the purview of this invention.

I claim as my improvement- In a gas-burner the combination of the burner-pipe with the open-center choke-ring located therein and piercedA by smallgas-pas- 8o sages next the interior of saidl burner-pipe, all substantially as described and for the purposes set forth.

JOHN F. BARKER.

Witnesses:

E. H. BREWSTER," H. C. BREWSTER. e 

